7
English
NOTE
○
Multi-position
twist
handle
(
Fig.
7
)
The rear control handle turns 90 degrees to
provide comfortable use while accommodating a
variety of cutting angles. The handle allows for
fi
ve di
ff
erent locking positions. Before attempting
to adjust rear handle, make sure the machine is
at idle or engine is shut o
ff
.
○
The machine will automatically shut o
ff
if the
throttle lever is pressed while the handle is NOT
secured in one of the
fi
ve preset positions. Never
attempt to operate the machine unless the rear
handle is properly locked in place.
To rotate the handle; push the lock lever (6)
allowing the handle to turn. Press the lock lever
(6) to release the lock and allow the handle to
turn. Rotate the handle to the desired 0°, 45° or
90° locking position and release the lock lever (6)
to lock the handle in place.
D:
LOCK
E:
UNLOCK
D
E
6
Fig. 7
Stopping
(
Fig.
8
)
Decrease engine speed, and push stop switch to stop
position (F).
2
F
Fig. 8
MAINTENANCE
MAINTENANCE, REPLACEMENT OR REPAIR OF
THE EMISSION CONTROL DEVICES AND SYSTEM
MAY BE PERFORMED BY ANY NONROAD ENGINE
REPAIR ESTABLISHMENT OR INDIVIDUAL.
Carburetor
adjustment
(
Fig.
9
)
WARNING
●
The
cutting
attachment
may
be
spinning
during
carburetor
adjustments.
●
Never
start
the
engine
without
the
complete
cleaner
cover.
Otherwise
the
clutch
can
come
loose
and
cause
personal
injuries.
In the carburetor, fuel is mixed with air. When the
engine is test run at the factory, the carburetor is
adjusted. A further adjustment may be required,
according to climate and altitude. The carburetor has
one adjustment possibility:
T
=
Idle
speed
adjustment
screw.
T
Fig. 9
Idle
speed
adjustment
(
T
)
Check that the air
fi
lter is clean. When the idle speed
is correct, the cutting attachment will not rotate. If
adjustment is required, close (clockwise) the T-screw,
with the engine running, until the cutting attachment
starts to rotate. Open (counter-clockwise) the screw
until the cutting attachment stops. You have reached
the correct idle speed when the engine runs smoothly
in all positions well below the rpm when the cutting
attachment starts to rotate.
If the cutting attachment still rotates after idle speed
adjustment, contact Hitachi dealer.
Air
fi
lter
(
Fig.
10
)
The air
fi
lter must be cleaned from dust and dirt in
order to avoid:
○
Carburetor malfunctions.
○
Starting problems.
○
Engine power reduction.
○
Unnecessary wear on the engine parts.
○
Abnormal fuel consumption.
000Book̲CH22EAP(50ST)̲US.indb 7
000Book̲CH22EAP(50ST)̲US.indb 7
2012/01/16 13:33:36
2012/01/16 13:33:36
